New PDF release: Advances in Chemical Signals in Vertebrates

By Dietland Müller-Schwarze (auth.), Robert E. Johnston, Dietland Müller-Schwarze, Peter W. Sorensen (eds.)

ISBN-10: 1461371457

ISBN-13: 9781461371458

ISBN-10: 1461547334

ISBN-13: 9781461547334

The box of olfactory study and chemical communique is within the early phases of innovative switch, and plenty of facets of this revolution are mirrored within the chapters during this booklet. therefore, it's going to serve admirably as an up to date reference. First, a variety of vertebrate teams and species are represented. moment, there are first-class experiences of particular themes and theoretical techniques to conversation by way of odors, together with chapters on sign specialization and evolution in mammals, the evolution of hormonal pheromones in fish, alarm pheromones in fish, chemical repellents, the chemical signs inquisitive about endocrine responses in mice, and the talk over human pheromones. 3rd, there are interesting new findings offered in several particular subject components, comparable to the chemis­ test of pheromones in a variety of species (salamanders to elephants), the chemistry of proteins that keep watch over the discharge of pheromones, the molecular biology and body structure of detection, coding and reaction to smell indications, the results of expertise on sensitivity to odors, the position of genes of the immune procedure in scent creation and in human mate selection, the functionality and notion of odor over-marks, the popularity of people and relatives by way of odors, the effect of odors on predator-prey interactions, and using odors to aid regulate pests. This publication is an offshoot of the 8th foreign Symposium on Chemical Sig­ nals in Vertebrates, held at Cornell collage in Ithaca, big apple, July 20-25, 1997, hosted and arranged via Bob Johnston.

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Most insect pheromones are highly specific and only active when complet~they are obligate mixtures. The functional nature of mixtures has yet to be directly addressed in fishes. Multiple-component pheromones may be comprised of various combinations of primary, secondary, inhibitory, and redundant components (described below). 20 P. W. Sorensen and N. E. Stacey Primary component: A component in a mUltiple-component pheromone that induces a positive biological response on its own and acts via its own neural pathway (with olfactory receptor).

4. 3) and is best examined by directly comparing these attributes in related species. Here we discuss indirect evidence pertaining to the goldfish, as no studies have been conducted to directly assess such specialization. At present, we see little evidence for specialized pheromone production in goldfish, which in the preovulatory period release several dozen sex steroids, with AD, 17,20j3P, 17,20j3P-20S as relatively minor components of total steroid output (Sorensen & Scott, 1994). Little is know about steroid release by species related to the goldfish but at least at present we have no reason to believe that goldfish pathways are specialized.

This process could, however, serve as a first step towards eventual signal elaboration (see below) in which components come to be discriminated and develop inherent meaning-and perhaps increase signal information content. , 1995a). Notably, EOG studies (Stacey, unpublished) have found several fish species with multiple, relatively broadly-tuned olfactory steroid receptors, the functional significance of which is unclear. 2. Signal Elaboration. 4). This process involves the production of new products and sensitivity to them, thus requiring co-evolution of the physiology and behavior of signal donors and receivers.

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Advances in Chemical Signals in Vertebrates by Dietland Müller-Schwarze (auth.), Robert E. Johnston, Dietland Müller-Schwarze, Peter W. Sorensen (eds.)

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